A science experiment involves periodically measuring the number of mold cells present on a piece of bread. At the start of the e
xperiment, There are 50 mold cells. Each time a periodic observation is made, the number of mold cells triples. For example, observation #1, there are 150 mold cells.
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Answer:
x = - 26
Step-by-step explanation:
Let the number be x.
According to the question,
Cross multiplying 4 & 3 gives :-
And solving this eqn. gives :-
Verification :-
(putting the value of x = -26 )
Reducing by 7 gives
.